KR101130751B1 - Wig-Craft with Hybrid Propulsion System - Google Patents

Abstract

The present invention relates to a wig ship with a hybrid propulsion system, and more particularly, in addition to the general propulsion system of the wig ship comprising a propeller, a gear, a propeller rotating shaft and an engine, the power assist means for converting electrical energy into rotational energy and The present invention relates to a wig wire equipped with an auxiliary thrust generating system for improving a thrust of a propulsion system by constructing an electric motor system for converting rotational energy into electric energy and connecting an electric gear to the propeller rotating shaft. By applying the present invention to the wig wire can secure sufficient completion thrust even with a small number of engines compared to the existing method, it is possible to reduce the production cost of wig wire.

Wig ship, engine, hybrid, propulsion system, electric motor, propeller

Description

Wig-Craft with Hybrid Propulsion System

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wig ship equipped with a hybrid propulsion system, and the thrust required for the completion of the wig ship is much higher than that required in Hangzhou. The Wig ship solved by installing a hybrid propulsion system means.

In general, WIG (WING IN GROUND EFFECT SHIP) is a ship that floats on the surface of the water, and when the main wing hangs near the surface, the drag decreases and lift is increased.It is 200 ~ 300km / h much faster than the existing ship. It is able to operate at the speed of and is more economical than the aircraft, so it is a high speed marine transportation system with excellent transportation efficiency.

Such a propulsion system of a wig ship is generally composed of an engine, a gear and a propeller. Various types of engines are used, ranging from internal combustion engines to turbo engines. Internal combustion engines have a large burden on weight and turbo engines have a heavy burden on costs.

Hug ships generally take 100% more momentum than Hangzhou for a very short period of time, such as 1-2 minutes. The use of additional engines as a power source compared to Hangzhou to draw thrust to be used for only a short time as in the course of training is problematic in terms of weight and cost efficiency, and many attempts have been made to solve the problem.

Previous attempts have been made of wigs using PAR (Power Augmented Ram) devices and wigs using Hoverwing. However, the PAR method does not only have to install an expensive engine, but also has a disadvantage in that it does not reduce the impact force transmitted to the hull at the start, and the Hoverwing method is very effective but requires a larger thrust than the engine used. There is still a problem in the Wig ship that does not provide a way to increase thrust economically and efficiently.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-mentioned conventional problems is to provide a wig line provided with a thrust system using a new power assist device capable of economically and effectively increasing thrust without using an expensive additional engine.

Wig wire provided with a hybrid propulsion system according to the present invention for achieving the above technical problem, the hull generating buoyancy to be floating on the water; Wings to fly on the water by lifting force on both sides of the hull; A propeller connected to the propeller rotating shaft at both sides of the rear surface in the traveling direction of the wing; An engine generating the propeller rotational force; A gear device for mediating the rotational force generated from the engine to a propeller; And an electric motor additionally connected to the propeller directly or through the gear device to generate additional rotational force of the propeller, wherein the engine and the electric motor generate 1 to 2 minutes when the rotational force generated by the motor is completed. It is characterized in that the transmission to the propeller to derive thrust during.
Here, the battery for storing the electrical energy generated by the electric motor; And a charge and discharge control system for supplying the electric energy stored in the battery to the electric motor or storing the electric energy in the battery.
At this time, the battery is characterized in that it is composed of any one or a combination of two or more of a secondary battery hydrogen ion battery, lithium ion battery, metal air battery.
In addition, the propeller rotating shaft is characterized in that for transmitting the engine rotational force and the rotational force generated by the electric motor converted by the gear device to the propeller.

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As described above, in the case of the wig line equipped with the hybrid propulsion system according to the present invention, the production cost is much smaller than that of the PAR type wig line, and when combined with the Hoverwing method, it is possible to manufacture wig wire of various sizes with the engine of the same specification. In addition, it will be able to contribute to the improvement and popularization of the Wig ship, including significant increase in take-off and replacement of gas turbine engines with internal combustion engines.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram for a hybrid propulsion system according to the present invention, Figure 2 is a configuration diagram of a wig wire provided with a hybrid propulsion system according to FIG.

Here, hybrid propulsion generally refers to the use of two or more propulsion systems, but what is proposed here refers to a combination that complements the advantages and disadvantages of each by combining an engine and a motor / generator.

In addition, the hybrid system is increasingly used in automobiles, which are land transportation vehicles, but is being widely used as a fuel economy improving means. In addition, electric vehicles using electric motors, which are one of the power components of hybrid vehicles, have recently received a lot of attention. Nevertheless, one of the major problems of a vehicle using an electric motor is the problem of a mileage that can be driven using an electric motor.

However, in the case of the Wig line, as described above, excessive thrust is only required for a short time of 1 to 3 minutes at the time of completion, thereby removing the limitation due to the traveling distance that may occur when the electric motor is used.

That is, the driving distance of the vehicle using the electric motor is generally determined by the size of the battery and the energy density of the battery. In the case of the wig line, the distance of the vehicle is used for only 1 to 3 minutes, so there is no restriction due to the energy density. .

First, referring to FIG. 1, an embodiment of a hybrid propulsion system according to the present invention will be described.

In general, the Wig wire propulsion system configuration includes a propeller 170, a gear device 160, a propeller rotating shaft 175, and an engine 150.

In this case, the engine 150 generates a rotational force of the propeller 170, the generated rotational force is transmitted to the propeller 170 directly or through the gear device 160, the propeller 170 is rotated by the wig wire 100 It generates a driving force to move the. The engine 150 is not limited to a turbo engine and may be used by replacing a gas turbine engine with an internal combustion engine.

In addition, the propeller 170 is a device for converting the rotational force generated by the engine 150 and the electric motor (referred to as an electric motor or an electric and power generation apparatus, hereinafter referred to as "electric motor", 140) to the propulsion force, and the propeller The rotating shaft 175 is a device for transmitting the rotational force of the engine 150 converted by the gear device 160 and the rotational force generated by the electric motor 140 to the propeller 170, according to an embodiment of the present invention. In the case is also used to transmit the rotational force generated by the engine 150 to the electric motor 140. In addition, the gear device 160 is for converting the rotational force generated by the engine 150 into the propulsion force with optimum efficiency and converting the high-speed rotational motion of the engine 150 into the low-speed rotational motion of the propeller 170. Play a role.

The present invention provides a new propulsion system including a motor 140 for converting electrical energy into rotational energy and converting rotational energy into electrical energy as a power assist device in the general thrust generating propulsion system. Specifically, the propulsion system thrust of the wig line 100 is improved by connecting the gear device 160 connected to the electric motor 140 to the propeller rotation shaft 175.

In other words, the auxiliary power unit is additionally connected directly to the propeller 170 or through the gear unit 160 to generate an additional rotational force of the propeller 170 and the electric motor ( Charge / discharge control for supplying the battery 180 for storing the electrical energy generated by the 140 and the electrical energy stored in the battery 180 to the electric motor 140 or for storing the electrical energy in the battery 180 The system 190 is configured.

At this time, the electric motor 140 is additionally connected to the propeller 170 directly or through the gear device 160 to generate a rotational force in addition to the rotational force generated in the engine 150.

That is, the charge / discharge control system 190 and the battery 180 are further configured in the general propulsion system configuration to use the electric motor 140 for a specific time, and then the power generated by the engine 150 for later use. Charging using is configured as an embodiment according to the present invention.

Here, the charge / discharge control system 190 supplies the electric energy stored in the battery 180 to the electric motor 140 or stores the electric energy generated by the electric motor 140 in the battery 180. Means a device.

In this case, the energy for generating the rotational force of the electric motor 140 is supplied from the battery 180, the battery 180 is one of a variety of secondary batteries, such as hydrogen ion battery, lithium ion battery, metal air battery or Combinations thereof. In addition, in order to satisfy the power density required in the Wig line 100, a power density improving technique such as a super-capacitor technique may be applied.

Hereinafter, with reference to FIG. 2 will be described the Wig wire structure provided with the hybrid propulsion system of FIG.

As shown, the hull 110 serves to generate buoyancy so that the Wig wire 100 can float on the water, and refers to a body formed in a straight line in the direction of the Wig wire 100 propulsion, and both sides of the hull 110 As the Wig wire 100 is provided with a main wing 120 so that it can fly on the water (above) to receive the lift, and the tail portion 130 is configured on the rear portion of the hull (110).

In addition, the battery 180 is mounted inside the hull 110, and includes a propeller 170 for generating a generated rotational force with thrust on both sides of the rear side of the main wing 120 in the traveling direction, and the propeller 170. ) Is connected through the electric motor 140, the engine 150, the gear device 160 and the propeller rotating shaft 175 is connected to each other, such a configuration is connected to the battery 180 is configured.

Meanwhile, the configuration of the charge / discharge control system 190 connected to the battery 180 is preferably provided inside the hull 110 having a controller (not shown).

Hereinafter, a brief description of the operation of the hybrid propulsion system as follows.

First, the engine 150 is operated and executed. Subsequently, the rotation speed is changed through the gear device 160 and the rotational force is transmitted to the propeller rotation shaft 175, the rotation of the propeller 170 is started using the transmitted rotational force, and the electric motor 140 is rotated. It is possible to operate, and transmit the electric force of the electric motor 140 to the propeller rotation shaft 175, it is possible to increase the propeller 170 rotational force by the transmitted rotational force. After the Wig line is completed, the electric system including the electric motor 140 is charged.

Herein, the method of charging the electric system will be described in detail.

First, the engine 150 is operated, the rotation speed is changed through the gear device 160, and the rotational force is transmitted to the propeller rotation shaft 175, and the rotational force of the propeller rotation shaft 175 is transmitted to the electric motor 140. And generating an electromotive force by the electric motor 140 and storing the generated electromotive force in the battery 180.

This is because, by implementing a battery system using a secondary battery which is inexpensive to the weight and cost of the engine 150 in order to implement an efficient economic system in the configuration of the propulsion system of the Wig wire 100 that requires a short time increase of power output for a short time This is to implement an efficient economic system in the construction of the propulsion system of the Wig ship which needs to be reinforced.

That is, since the energy density of the secondary battery currently used is 100 [Wh / Kg] and the power density is 200 ~ 4,000 [W / kg], a thrust of 700 hp can be obtained for 3 minutes with a 250 kg battery. This is a very efficient power system compared to gas turbines that weigh 500kg and cost more than 500 million won to obtain the thrust, especially for propulsion systems that need to increase power for a short time such as 5 to 10 minutes. Efficient and economical implementation will be possible.

On the other hand, the power to be used in the later completion can be secured by recharging the battery 180 in the reverse order of operation of the motor during cruising or by replacing it with a fully charged battery pack on land after arrival at the destination. In this case, when the battery 180 is charged in the reverse order of the operation of the electric motor 140, the rotational force generated by the engine 150 is transmitted to the electric motor 140 directly or through the gear device 160, and the transmitted rotational force is the electric motor. At 140, the electromotive force is converted, and the converted electromotive force is stored in the battery 180 via the charge / discharge control system 190.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of course, this is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims that follow.

1 is a block diagram of a hybrid propulsion system according to the present invention

FIG. 2 is a wig wire configuration diagram having a hybrid propulsion system according to FIG. 1.

*** Description of the main parts of the drawing ***

100: Wig ship 110: Hull

120: main wing 130: tail wing

140: electric motor 150: engine

160: gear device 170: propeller

175: propeller axis of rotation 180: battery

190: charge / discharge control system

Claims (4)

In the wig ship equipped with a hybrid propulsion system, A hull generating buoyancy to float on water; Wings to fly on the water by lifting force on both sides of the hull; A propeller connected to the propeller rotating shaft at both sides of the rear surface in the traveling direction of the wing; An engine generating the propeller rotational force; Gear device for transmitting the rotational force generated from the engine to the propeller; And And an electric motor additionally connected directly to the propeller or through the gear device to generate additional rotational force of the propeller. Wig wire provided with a hybrid propulsion system, characterized in that for transmitting the torque generated by the engine and the electric motor to the propeller to draw a thrust for 1 to 2 minutes. The method of claim 1, A battery for storing electrical energy generated by the electric motor; And And a charging and discharging control system for supplying electrical energy stored in the battery to the electric motor or storing electrical energy in the battery. 3. The method of claim 2, The battery is a Wig wire having a hybrid propulsion system, characterized in that composed of any one or a combination of two or more of a secondary battery hydrogen ion battery, lithium ion battery, metal air battery. The method of claim 3, The propeller rotation shaft is a Wig wire having a hybrid propulsion system, characterized in that for transmitting the engine rotational force and the rotational force generated by the electric motor converted by the gear device to the propeller.

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